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Unchained Engine is a high-performance, open-source e-commerce and middleware framework for Node.js/Bun

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Core Design Principles of Unchained Engine:​

  • Codeability: Extend the system with endless possibilities, unrestricted by "customization" or settings.
  • GraphQL API: Build modern, fully omni-channel storefronts.
  • Stateless architecture: Scale horizontally and vertically.
  • Low Overhead: We value simplicity and speed! Unchained runs on Node.js 22+ and Bun 1.1+, is pure ESM, and directly uses the native MongoDB driver.
  • Production readiness: Used by companies running large B2C and B2B portals with 20,000+ articles and 100+ concurrent users.